Formula: List of all unique values from a column in the same table/row and related rows from another table

I have ‘Tags’ (table) with ‘Name’ (text column) and ‘Parent’ (relation column to 'Tags:Name, single selection) and an ‘Objects’ (table) with ‘Name’ (text column), ‘Object Tags’ (relation column to ‘Tags:Name’, multiple selection), and ‘All Tags’ (!formula).

I am trying to build a formula in ‘Objects:All Tags’ that will take all of the values from ‘Object:Tags’ in the same row, then lookup the values of the ‘Tags:All Parents’ for each, then return all of the unique ‘Object:Tags’ and ‘Tags:All Parents’.

I’m so close!

Object Tags (table)

  • Name: text
  • Parent: relation: ‘Object Tags:Name’, single selection
  • All Parents: formula, working, good:
WithName(
  thisRow.Parent, parentCategory,
  If(
    parentCategory.IsBlank(),
    List(),
    WithName(
      parentCategory.[All Parents], accumulatedParents,
      ListCombine(accumulatedParents, parentCategory)
    )
  )
)

Objects (table)

  • Name: text
  • Tags: relation: ‘Object Tags:Name’, multiple selections
  • All Tags: ! formula: not working as desired:
WithName(
  thisRow.Tags, selectedTypes,
  selectedTypes.FormulaMap(
    ListCombine(CurrentValue.[All Parents], CurrentValue)
  ).Unique().FormulaMap(CurrentValue)
)

However, in the UI, the above formula returns two complete (not unique) sets of values, as well as brackets for the sets.:


The CSV raw data is:

Name,Tags,All Tags,Relationships
McDonald’s,"Fast Food,Chain Restaurant","Place,Business,Restaurant,Fast Food,Place,Business,Restaurant,Chain Restaurant"

Desired Result:
With the following ‘Object Tags’ (table)

Name Parent All Parents
Place
Business Place Business, Place
Restaurant Business Restaurant, Business, Place
Fast Food Restaurant Fast Food, Restaurant, Business, Place
Chain Restaurant Restaurant Chain Restaurant, Restaurant, Business, Place

In 'Objects (table), the desired result for ‘All Tags’ would be:

Object Tags All Tags
McDonald’s Fast Food, Chain Restaurant Fast Food, Chain Restaurant, Restaurant, Business, Place

Any help or guidance would be appreciated. What can I do to return the desired result?